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index.zulzul<zk>
<window border="normal" title="hello" apply="pkg$.TestComposer">
<label value="Name:"/>
<textbox id="nameTextbox" placeholder="Enter Name"/>
<label value="Email:"/>
<textbox id="emailTextbox" placeholder="Enter Email"/>
<label value="Mobile:"/>
<textbox id="mobileTextbox" maxlength="10" placeholder="Enter Mobile"/>
<label value="Password:"/>
<textbox id="passwordTextbox" placeholder="Enter Password"/>
<button id="registerBtn" label="Register" onClick="onRegisterClick"/>
<label id="messageLabel" style="color: red;" />
</window>
</zk>
TestComposer.javajavaimport org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.event.Event;
import org.zkoss.zk.ui.event.EventListener;
import org.zkoss.zk.ui.select.SelectorComposer;
import org.zkoss.zk.ui.select.annotation.Listen;
import org.zkoss.zk.ui.select.annotation.Wire;
import org.zkoss.zul.Label;
import org.zkoss.zul.Textbox;
import org.zkoss.zul.Messagebox;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class TestComposer extends SelectorComposer<Component> {
@Wire
private Textbox nameTextbox;
@Wire
private Textbox emailTextbox;
@Wire
private Textbox mobileTextbox;
@Wire
private Textbox passwordTextbox;
@Wire
private Label messageLabel;
@Listen("onClick = #registerBtn")
public void onRegisterClick() {
String name = nameTextbox.getValue();
String email = emailTextbox.getValue();
String mobile = mobileTextbox.getValue();
String password = passwordTextbox.getValue();
if (name.isEmpty()) {
messageLabel.setValue("Name is required!");
return;
}
if (!isValidEmail(email)) {
messageLabel.setValue("Please enter a valid email address!");
return;
}
if (!isValidMobile(mobile)) {
messageLabel.setValue("Please enter a valid 10-digit mobile number!");
return;
}
if (!isValidPassword(password)) {
messageLabel.setValue("Password must be at least 8 characters, including 1 uppercase letter, 1 number, and 1 special character.");
return;
}
messageLabel.setValue("Registration successful!");
}
private boolean isValidMobile(String mobile) {
String regex = "^[0-9]{10}$";
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(mobile);
return matcher.matches();
}
private boolean isValidEmail(String email) {
String regex = "^[a-zA-Z0-9_+&*-]+(?:\\.[a-zA-Z0-9_+&*-]+)*@(?:[a-zA-Z0-9-]+\\.)+[a-zA-Z]{2,7}$";
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(email);
return matcher.matches();
}
private boolean isValidPassword(String password) {
String regex = "^(?=.*[A-Z])(?=.*\\d)(?=.*[@$!%*?&])[A-Za-z\\d@$!%*?&]{8,}$";
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(password);
return matcher.matches();
}
@Listen("onChanging = #nameTextbox, #emailTextbox, #mobileTextbox, #passwordTextbox")
public void clearErrorMessage() {
messageLabel.setValue("");
}
public void doAfterCompose(Component comp) throws Exception {
super.doAfterCompose(comp);
mobileTextbox.addEventListener("onChanging", new EventListener<Event>() {
@Override
public void onEvent(Event event) throws Exception {
if (mobileTextbox.getValue().length() > 10) {
mobileTextbox.setValue(mobileTextbox.getValue().substring(0, 10));
}
}
});
emailTextbox.addEventListener("onChanging", new EventListener<Event>() {
@Override
public void onEvent(Event event) throws Exception {
}
});
}
}